וְנִלְו֣וּ עָלֶ֔יךָ וְשָֽׁמְר֗וּ אֶת־מִשְׁמֶ֙רֶת֙ אֹ֣הֶל מוֹעֵ֔ד לְכֹ֖ל עֲבֹדַ֣ת הָאֹ֑הֶל וְזָ֖ר לֹא־יִקְרַ֥ב אֲלֵיכֶֽם׃
레위인은 너와 합동하여 장막의 모든 일과 회막의 직무를 지킬 것이요 외인은 너희에게 가까이 못할 것이니라
Rashi on Numbers
וזר לא יקרב אליכם AND A LAYMAN SHALL NOT APPROACH UNTO YOU — It is you whom I admonish concerning this.
Sforno on Numbers
ושמרו את משמרת אהל מועד, within the curtained off area of the courtyard.
Rabbeinu Bahya
ושמרו את משמרת אהל מועד, “and they are to safeguard the duties pertaining to the Tent of Meeting.” The purpose of this שמירה, supervision, is to enhance the reputation of the Tabernacle as it is a well known fact that any building surrounded by guards of honour is considered as of greater importance by people seeing the guards than even a palace not surrounded by guards.